Add more namedtuple() test cases. Neaten the code and comments.
diff --git a/Lib/test/test_collections.py b/Lib/test/test_collections.py
index d6cfe9b..73ae62a 100644
--- a/Lib/test/test_collections.py
+++ b/Lib/test/test_collections.py
@@ -90,9 +90,36 @@
def test_odd_sizes(self):
Zero = namedtuple('Zero', '')
self.assertEqual(Zero(), ())
+ self.assertEqual(repr(Zero()), 'Zero()')
+ self.assertEqual(Zero()._asdict(), {})
+ self.assertEqual(Zero()._fields, ())
+
Dot = namedtuple('Dot', 'd')
self.assertEqual(Dot(1), (1,))
+ self.assertEqual(Dot(1).d, 1)
+ self.assertEqual(repr(Dot(1)), 'Dot(d=1)')
+ self.assertEqual(Dot(1)._asdict(), {'d':1})
+ self.assertEqual(Dot(1)._replace(d=999), (999,))
+ self.assertEqual(Dot(1)._fields, ('d',))
+ n = 10000
+ import string, random
+ names = [''.join([random.choice(string.letters) for j in range(10)]) for i in range(n)]
+ Big = namedtuple('Big', names)
+ b = Big(*range(n))
+ self.assertEqual(b, tuple(range(n)))
+ for pos, name in enumerate(names):
+ self.assertEqual(getattr(b, name), pos)
+ repr(b) # make sure repr() doesn't blow-up
+ d = b._asdict()
+ d_expected = dict(zip(names, range(n)))
+ self.assertEqual(d, d_expected)
+ b2 = b._replace(**dict([(names[1], 999),(names[-5], 42)]))
+ b2_expected = range(n)
+ b2_expected[1] = 999
+ b2_expected[-5] = 42
+ self.assertEqual(b2, tuple(b2_expected))
+ self.assertEqual(b._fields, tuple(names))
class TestOneTrickPonyABCs(unittest.TestCase):